/*---------- Java Script ----------*/

function nextPage(loc) {
window.location.href = loc;
selectionButtons(loc);

}

function selectionButtons(loc) {

switch (loc)
	{
	case 'index.html':
		for(var i=0;i<13;i++)
			{
				if(i==0)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;

	case 'about.html':
		for(var i=0;i<13;i++)
			{
				if(i==1)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;


	case 'submissions.html':
		for(var i=0;i<13;i++)
			{
				if(i==2)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;


	case 'catalogue.html':
		for(var i=0;i<13;i++)
			{
				if(i==3)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;


	case 'editors.html':
		for(var i=0;i<13;i++)
			{
				if(i==4)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;


	case 'buy.html':
		for(var i=0;i<13;i++)
			{
				if(i==5)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;


	case 'contact.html':
		for(var i=o;i<13;i++)
			{
				if(i==6)
					parent.document.getElementById(i).style.background = 'url(images/selected.jpg)';

				else
					parent.document.getElementById(i).style.background = 'url(images/unselected.jpg)';
			}
		break;

	}
}

function hoover(x) {
	document.getElementById(x).style.background = 'url(images/navhover.jpg)';
}

function unhoover(x) {
	document.getElementById(x).style.background = 'url(images/unselected.jpg)';
}


/* -------------- Change Catalogue Pages --------- */


function changeCatalogue(cat) {
	parent.document.getElementById(10).src = 'catalogue/' + cat;
}

/* --------------- Link to Book Pages ----------- */

function bookpage(book) {
	window.location.href = 'book_pages/' + book + '.html';
}

function cataloguepage(book) {
	parent.window.location.href = '../book_pages/' + book + '.html';
}